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Finding the Fourth Proportional to 157,471.70, 236,207.55 and 98,422.70

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Solution

The fourth proportional to 157,471.70, 236,207.55 and 98,422.70 is: 147,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,471.70 : 236,207.55 = 98,422.70 : x
  2. Step 2: Convert to fraction form
    157,471.70/236,207.55 = 98,422.70/x
  3. Step 3: Cross multiply
    157,471.70x = 236,207.55 × 98,422.70
  4. Step 4: Simplify right side
    157,471.70x = 23,248,184,831.39
  5. Step 5: Solve for x
    x = 23,248,184,831.39/157,471.70
  6. Step 6: Final answer
    x = 147,634.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.